Research and Design on Low Reflectivity of One-dimensional Metal-Dielectric Photonic Crystal Shielding Film

In order to improve the visible light transmittance of the one-dimensional metal dielectric photonic crystal shielding film, the optical interlayer anti-reflection design is adopted for the OMPC film system by the equivalent needle layer insertion method. An optical antireflection OMPC composite film system is formed by a composite structure model composed of an optical functional film and an OMPC film system, which increases the visible light transmission ability of the shielding film. The optical interference scattering theory and equivalent refractive index were used to analyze the film structure of the OMPC shielding film, and the refractive index matching method and software-aided design were used to calculate the light transmittance and reflectance of the film system. The result was that the composite film system was significantly improved the transmittance.